Barrel lock for rifles



Dec. 24, 1957 GA. LEHMAN BARREL LOCK FOR RIFLES Filed Feb. 6, 1956 m l Iu INVENOR. '14. Lehman fiearge ATTORNEY- BARREL LOCK FOR RIFLES GeorgeA. Lehman, Bellevue, Wash.

Application February 6, 1956, Serial No. 563,564

1 Claim. (Cl. 42-1) This invention relates to new and usefulimprovements in firearms and firearm accessories.

More particularly, the present invention proposes the construction of animproved barrel lock for rifles which can be used easily and safely onthe muzzle end of a rifle to stop a bullet on accidental discharge ofthe piece.

As a further object, the present invention proposes forming the barrellock with a cam locking lever having a sight opening and adapted tosecure the lock on a rifle over the front sight without damaging thefront sight.

Still another object of the invention proposes constructing the devicewith a locking extension and a lock member which will hold the devicesecurely on a rifle barrel and make it impossible to remove without theuse of a special key.

Another object of the invention proposes forming the device withremovable bullet stopping packing and spaced gas exhaust port openingsso that the rifle on which the device is locked can be fired withoutharm or release of the bullet and so that the device can be used anynumber of times merely by replacing the inexpensive packing.

It is another object of the invention to provide a device simple inconstruction which will perform safely to prevent death, injury orproperty damage from careless handling of a rifle and accidentaldischarge.

For further comprehension of the invention, and of the objects andadvantages thereof, reference will be had to the following descriptionand accompanying drawings, and to the appended claims in which thevarious novel features of the invention are more particularly set forth.

In the accompanying drawings forming a material part of this disclosure:

Fig. 1 is a side view of a rifle and a barrel type lock constructed andarranged in accordance with the present invention.

Fig. 2 is an enlarged side view of the barrel lock with parts brokenaway and in section.

Fig. 3 is a sectional view taken on line 33 of Fig. 2.

Fig. 4 is a sectional view taken on line 44 of Fig. 2.

Fig. 5 is a side view of the barrel lock with the cam locking leverraised and with a key shown, partly broken away, in the lock.

Referring more particularly to the drawings, the barrel type lock inaccordance with the present invention has a body 15 which preferably iscylindrical and made of steel or other metal which may be non-rusting orrust resistant treated.

Body 15 has an open rear end 16, a closed front end 17, and acylindrical bore 18 which extends from the open end 16 to the closed end17. A tubular locking extension 19 on the body 15 adjacent the closedend 17 has a longitudinal axis substantially perpendicular orperpendicular to the longitudinal axis of the body 15. Inside thelocking extension 19 is a locking chamber 20 which extends through theextension 19 into the bore 18 of body 15.

Body 15 also has a clamping lever opening 21 between the open end 16 andthe locking extension 19 and spaced 2,817,172 Patented Dec. 24, 1957 16of the body. Lever 24 has another end 27 with a sight receiving opening28 adapted to be disposed in the clamping lever opening 21 of the bodyadjacent the locking extension 19. The sight opening 28 is adapted tofit around the front sight 29 of a rifle 30. The lever has a transverseslot 31 in its free end.

A key-operated locking barrel member 32 of a conventional pin andtumbler type lock assembly is rotatably mounted in the chamber of thelocking extension 19. A bar 33 extends outwardly of the inner end of thebarrel and then protrudes laterally in the bore 18 of the body 15. Whenthe barrel member 32 is turned by its key, the bar 33 is adapted to beswung into the slotted free end 31 of the lever 24 and lock the lever inlocking position as shown in solid lines in Fig. 2.

Inside the cylindrical bore 18 of body 15 are spaced rifle barrelspacing members 34, 35 and 36 disposed 1ongitudinally and adapted tohold the muzzle end 37 of rifle spaced from the inner side walls of thecylindrical bore 18.

Looking lever 24 has a rifle barrel holding cam extension 38 adapted toabut and frictionally hold a rifle barrel 37 in the bore 18 of the body15 between the rifle barrel spacing members 34, and 36 and the barrelholding cam extension 38 on the locking lever.

Rifle barrel end stop members or pins 39 and 40 are disposed in the bore18 of body 15 to limit the inward movement and hold the muzzle of rifle30 spaced from the packing 23 in the bore 18 and from the gas exhaustports 22.

A pin 41 is slidably mounted in a radial opening in the extension 19adjacent its upper end. The pin is adapted to be slid into an alignedslot 43 formed in the locking barrel 32 to interlock the barrel andextension 19 thereby preventing relative rotation of the parts. Apivoted bar or key 42 is adapted to engage the pin 41 and move itoutwardly to nonlocking position as shown in Fig. 5. When the pin is inthis position, a key inserted into the barrel 32 will rotate the barrelwith its bar 33 releasing the lever 24 to permit it to be swung tounlocked position as shown in Fig. 5. By reason of this arrangement, anunauthorized person without a key cannot release the lever 24 forremoval of the device off the barrel of the rifle.

When the lock 15 is mounted on the end of the muzzle end 37 of the rifle30, it is held against displacement when a bullet is fired by means ofthe sight 29 engaging the inner wall of the slot 28 of the lever 24 andby means of the clamping action of the extension 38.

While I have illustrated and described the preferred embodiment of myinvention, it is to be understood that I do not limit myself to theprecise construction herein disclosed and that various changes andmodifications may be made within the scope of the invention as definedin the appended claim.

Having thus described my invention, what I claim as new, and desire tosecure by United States Letters Patent A barrel type lock for riflescomprising a body having an open end, a closed end and a cylindricalbore from the open to the closed end, a locking extension on the bodyadjacent the closed end and having a longitudinal axis substantiallyperpendicular to the longitudinal axis of the body, said lockingextension having a locking chamber extending therethrough, said bodyhaving a clamping lever slot opening between the open end and thelocking extension and spaced exhaustport openings adjacent the closedend, bullet stoppingpacking removably mounted in the bore of the bodyat. the closed end of the body, a clamping lever pivotally secured atone end to the body adjacent the open end of the body, saidlever havinganother end witha sight receiving opening, said lever being normally.disposed in. the clamping lever slot. opening of the body, a clampinglever lock member in the locking chamber of. the locking extensionremovably to hold the clamping lever in rifle barrel clamping positionin the,

clamping lever slot. opening of the. body, said clampingv lever lockmember having, a, lateral end. bar and. said clamping lever. havinga barslot opening Slidably to receive the free end of said, b.ar, said lock.member being rotatably mounted in the locking chamber, a locking pin inthe locking extension removably to hold the. clamping lever lock memberand locking extension in interlocking relationship, rifle barrel. endistop members in the bore to hold the muzzle of a rifie spaced from thepacking in the cylindrical bore of the body, spaced rifle barrel spacingmembers in the cylindrical bore of the body to hold a rifle barrelspaced from the inner side walls of the cylindrical bore, and a riflebarrel holding cam extension on the locking lever to abut and bearagainst a rifle barrel in the bore of the body to hold the barrelbetween the rifle barrel spacing members and the barrel holding camextension on the locking lever.

References Cited in the file of this patent UNITED STATES PATENTS

